Adjustable supports for electromagnetic means for influencing the beam of an electric discharge device



July 11-, 1967 P. M. CONSTANTINE ,3

ADJUSTABLE SUPPORTS FOR ELECTROMAGNETIC MEANS FOR INFLUENCING THE BEAM OF AN ELECTRIC DISCHARGE DEVICE 427,4, fit, 7 m

u y 1 1967 P. M. CONSTANTINE 3,330,979

ADJUSTABLE SUPPORTS FOR ELECTROMAGNETIC MEANS FOR INFLUENCING THE BEAM OF AN ELECTRIC DISCHARGE DEVICE Filed May 19, 1965 4 Sheets-Sheet 2 FIG. 2.

I I, l

7 INV EN TOR.

ETER. N. ('[M/STQNN/VE 6' TTUFNE Y.

July 11, 1967 P M. CONSTANTINE 3,330,979

ADJUSTABLE SUPPORTS FbR ELECTROMAGNETIC MEANS FOR INFLUENCING Filed May 19, 1965 THE BEAM OF AN ELECTRIC DISCHARGE DEVICE 4 Sheets-Sheet 3' FIG 5.

110 90 59 MMML y j 2551 y yp I" FlG.6. 5 s] 76 31 a I we 5 68 I gl 1' II I! l a I w *1] I 57 54 n1 1 mr a 2 51 [4 'I V65 106 Z 40 INVENTOR.

59 Pm M. m/vsmzvmls.

y 1, 1967 P. M. CONSTANTINE v 3,330,979

FOR INFLUENCIN THE BEAM OF AN ELECTRIC DISCHARGE DEVICE ADJUSTABLE SUPPORTS FOR ELECTROMAGNETIC MEANS 4 Sheets-Sheet 4.

Filed May 19, 1965 FIG. l3.

Y ADJUST.

FIG.|4.

IN VEN TOR. PETER M. (O/VJTINT/NE HWPNEY.

United States Patent s 330 979 ADJUSTABLE surroni s non ELECTROMAG- NETIC MEANS FOR INFLUENCING THE BEAM OF AN ELECTRIC DISCHARGE DE- VICE This invention relates to novel devices and also to novel combinations of said devices and electrical means either combined or uncombined with electric discharge devices. In one of its more specific aspects, the invention is directed to a mounting for precisely adjusting electrically means and for maintaining said means in precisely adjusted position. In one of its other specific aspects the invention is directed to an electric discharge device in combination with electrical means disposed exteriorly of said device for influencing the electric discharge beam generated in said device, with an adjustable mounting for said means capable of precise adjustment to adjust said means precisely to modify said beam with precision. In its more specific aspect the invention is directed to novel devices for positioning an electrical means exteriorly of an electrical discharge tube whereby said means can be longitudinally, horizontally and vertically adjusted and so maintained and also pitch and yaw adjusted and maintained whereby microinfluencing of the beam is achieved and maintained.

An object of the present invention is to provide a unique device for precisely positioning an electrical element and for maintaining said element in a precise position.

A further object of this invention is to provide :an electrical means maintained in a precise position by an adjustable support.

A still further object of this invention is to provide an electric discharge device in combination with an electrical means disposed exteriorly of said device for influencing an electric discharge beam generated in said device and supported by an adjustable mounting for precisely adjusting said means whereby said beam is precision modified.

A still further object of this invention is to provide a device for positioning an electric coil outside of an electric discharge tube, said device being capable of positioning and maintaining said coil in correct longitudinal, vertical, horizontal, yaw and pitch positions.

These as well as other objects and advantages of the present invention will at least in part be apparent from the following description taken in conjunction with the appended drawings, wherein:

FIG. 1 is a view in side elevation of an electric discharge device in combination with electrical elements carried by novel mountings of this invention.

FIG. 2 is a view taken on line II-II of FIG. 1 in the direction of the arrows.

FIG. 3 is a view taken on line direction of the arrows.

FIG. 4 is a view in side elevation of a novel mounting of this invention carrying a deflection yoke as shown in FIG. 1 but with the electric discharge device omitted and only a fragmentary of the supporting base being shown.

FIG. 5 is partially in cross section, view, taken on line V-V of FIG. 3 in the direction of the arrows.

FIG. 6 is a view, partially in cross section, taken on line VI-VI of FIG. 3.

FIG. 7 is a view, partially in cross section, taken on line VII-VII of FIG. 3.

FIG. 8 is a view showing diagrammatically the initial III-III of FIG. 1 in the positions of the center of the beam of the electric discharge device relative to the electric center of the electrical device not shown and with adjustable plate of the novel mounting being shown in front elevation.

FIG. 9 is a view similar to FIG. 8 and shows the position of the center of said beam in alignment with the electric-a1 center of the electrical device after the plate of the mounting has been horizontally adjusted for precisely eflectuating said alignment.

FIG. 10 is a view similar to FIG. 8 and shows the center of the beam at precisely the same point as the center of the electrical device after the plate of the mounting in FIG. 8 has been adjusted vertically to effectuate that result and has been adjusted for pitch.

FIG. 11 is a View similar to FIG. 8 but after the positioning plate has been adjusted for yaw.

FIG. 12 is a view similar to FIG. 8, and shows still another adjustment which may be made on the radii 13 and 14 shown.

FIG. 13 is a top adjustment.

FIG. 14 is a top View of FIG. 11 showing the pitch adjustment.

Referring now to the drawings, in FIG. 1 there is shown an electric discharge device, which in the illustration is a conventional television or cathode ray tube 10, having an elongated neck 11 and a front face the inner surface of which is provided with a screen. The tube 10 includes a suitable base 13 through which connections (not shown) are made to the conventional elements within the tube for providing them with electrical energy from an outside source of supply. The tube 10 includes an electron gun structure in the rear of the neck 11 for producing a beam of electrons and other elements of conventional cathode ray tubes and therefore such elements need not be described in detail herein. The tube 10 is rigidly mounted on a supporting base 15. As shown in FIG. 1 the base 15 has a front vertically disposed supporting frame 16 in which is located the front end of tube 10. The frame 16 has an enlarged central opening through which the screen face of the tube 10 may be viewed. A collar 17 is disposed rear- Wardly of frame 16 and is located forwardly of the elongated neck 11 of the tube 10. Two pairs of upper and lower tie-bars 18 are rigidly secured at their forward ends to the frame 16 and at their rear ends to the collar 17 and serve to lock and thereby maintain the tube 10 in a fixed position both horizontally and vertically with respect to the base 15. Mounted on the base 15 are a pair of positioning standards 18' for positioning centering coils 19 at the rear end of the tube 10.

Extending around the tube 10 are a plurality of other coils supported by novel and unique positioners 20 of the present invention. Since positioners 20 are alike only one of them will be described in detail and in combination with a high resolution deflection yoke 21.

The yoke 21 has a central opening for accommodating the neck 11 of the tube when the yoke 21 is coupled therewith.

The yoke 21 is in combination with the novel micropositioner 20 of the present invention thereby to provide a unitary structure which may be coupled with tube 10 as shown in the drawings. The yoke 21 has an insulating sleeve or cylinder 22 rigidly coupled therewith along the outside surface thereof. Sleeve 22 may be metallic if desired.

A sub-assembly is coupled with said yoke 21 as shown in FIGS. 2-6. Said sub-assembly comprises a single rigid element 25 consisting of two collars 26 and 27 integral with each other. The collar 26 is of smaller internal and external diameters than those of collar 27. The internal view of FIG. 11 showing the yaw cylindrical surface of collar 26 is in close proximity to the external surface of the insulator sleeve 22 and is rigidly coupled thereto in any convenient manner, as for example by short stud-bolts 28 which engage threaded radial openings in collar 26. Thus element 25 is firmly and rigidly coupled with the yoke 21 so that one is immovable with respect to the other under normal conditions of use. The element 25 rigidly connected to the yoke 21 has a narrow external recess 29 extending therearound. Encircling the collar 27 is a narrow collar 30 having threaded radial openings engaging screws 31 which extend into the recess 29 to fixedly andrigidly coupled collar 30 to the element 25. A handle 32 is secured to said collar 30 and extends outwardly therefrom. The front face of the collar 30 has an annular recess therein accommodating a rigid deflection plate 33 having a central opening 34 whose.

fixed diameter is practically the same as that of the shoulders 36 defining the inner end of said recess so that it makes a very close, even, firm but sliding fit therewith. The thickness of said plate 33 is /8" and is slightly greater than the depth of-said recess. The plate 33 is composed of full hard brass-and its outer periphery is approximately a square with one -corner'cut away at 38. Another corner thereof has an opening 39 therethrough for accommodating a pitch adjustment bolt 1; and the corner diagonally therefrom has a like opening 40 therethrough for accommodating ayaw adjustment bolt 2 and the fourth corner has a smaller diameter opening 41 therethrough. This last corner has a narrow horizontal slot 42 therein which extends through the side thereof and a corresponding narrow vertical slot 43 therein extending through the bottom edge thereof. The width of each slot 42 and 43 is approximately equal to the thickness plate 33 and the length of each of said slots is approximately 3 times the thickness of plate 33. Both of these slots 42 and 43 terminate a considerable distance outwardly beyond the inner edge of said plate 33. The longitudinal center lines of slots 42 and 43 are at right angles to each other. The lower edge of the horizontal slot 42 is located from the bottom edge of the plate, with the distance therebetween being about times the thickness of the plate 33; and the distance from the vertical edge of plate'33 and the nearer vertical edge of slot 43 is also about 5 times the thickness of plate 33. Also the inner or closed ends of slots 42 and 43 are disposed a considerable distance from the inner edge of the plate 33 which defines opening 34 therein. Said last corner has a groove 45 in the front face thereof. Groove 45 is of considerable depth which is approximately one half the thickness of the plate. The groove 45 extends in a straight line parallel to the side of plate 45 and to the vertical slot 43. Groove 45 extends through the lower edge of the plate 33 and through the inner end of the edge of the plate defining slot 42. Said last corner has a like groove 47 in the front face thereof. Said groove 47 is at right angles to groove 45 and extends through aside of plate 33 and through the inner end of the plate defining slot 43. Said grooves 45 and 47 intersecting each other at the midlengths thereof, thereby being in the form of a cross. Said lower corner of plate 33 has a third groove 49 like groove 43 in the front face thereof. Said groove 49 isapproximately diagonally disposed, with its lower end extending through side of the plate defining groove 43 and the upper end extending through the side of the plate defining groove 42. Said groove 49 extends through the intersection of grooves 45 and 47 at which intersection is the opening 41. That lower right hand quadrant of said corner has a pair of openings 50 disposed in diagonally opposite corners thereof and in line with opening 41. The plate 33 has a relatively short arcuate opening 51 therein disposed above and inwardly from the opening 40 and a like arcuate opening 52 therein disposed below and inwardly from opening 39. Said arcuate slots have the same radii, are of the same.

length and serve as rotation limiters. Said plate 33 is mounted in the recess in collar 30 and makes a very close 7 'yet sliding fit with shoulder 36. The rear face of plate'33 rests firmly and evenly on the annular face defining the 4 recess in collar 30. The thicknessof plate 33 is' a little greater than the depth of the shoulder 36. A relatively thin annular retainer ring 55 extends around collar 30 and one face thereof rests flat-wise against the front face of plate 33. Said ring 55 has a pair of diametrically disposed openings in' registry with the arcuate openings 51 and 52. Extending through said openings in retainer 55, and respective arcuate openings 51 and 52 are stud bolts 56 which make threaded engagement with the threaded openings in openings 50 and collar 30 thereby to latch firmly together in adjusted position the collar 30 and element 25 to the plate 33.

A connector post 57 is rigidly secured to the lower corner of plate 33 by a pair of screws 58 extending through making threaded engagement with threaded openings in the post 57. The aforedescribed combination is a unitary combination which is preferably separately assembled and is sometimes called sub-assembly A herein, and includes rubbery cover 59 for grooved corner.

Said sub-assembly A is supported by a sub-assembly B. The subassem-bly B comprises a sturdy standard or support 60 in the form of a thickbrass plate 61 having flat front and rear faces and a large central opening 62 through the thickness thereof. Said opening 62 is of irregular but of roughly rectangular shape thereby defining side rails '64 and 65, bottom rail 66 and top rail 67. Each of said side rails has a pair of openings therethrough for receiving bolts or screws 68 for locking brackets 69 and 70 to side rails 64 and 65 respectively. The bracket 69 has an opening accommodating a horizontal positioner stud bolt 76. The top rail 67 has a horizontally extending narrow opening 71 at one end thereof and through the thickness thereof for accommodating a latching bolt 72. Secured to the bottom rail 66 is a toe 73 in the form of a narrow elongated rigid bar or plate which extends rearwardly thereof. The toe 73 may be integral with rail 66 or it may be rigidly secured thereto by stud bolts or in any other convenient manner sothat one may not .be moved rela- .tive to the other under normal conditions of use. The

toe 73 has a pair of spaced elongated narrow openings 74 therein extending along the widthwise dimension thereof and adapted to accommodate latching stud bolts 75. Lying flush against the rear face of said plate 61 and resting upon the upper face of toe 73 is a rigid brass plate having acentral approximately elliptical opening 81 through the thickness thereof. Plate 80 is movable only horizontally with respect to plate 60 when 60 is indisposed vertically as shown. The side rails of plate 80 have vertically'dispo'sed narrow elongated slots 82 and 83 in communication with opening 81 and in diagonally opposed corners of plate 80 and are capable of accommodating bolts 1 and 2. A lower corner of plate 80 has a wide slot 84 in communication with the opening 81 and adapted to receive and accommodate the post 57 of sub-assembly A. The corner of plate 80 diagonally opposite from that havmg opening 84 has a pair of threaded openings 85 and 86 vert1cally spaced from each other and adapted to accommodate latching stud-bolts, 72 and 93.

A narrow guide rail 87 is integral with or otherwise secured to the plate 80 along each of the longitudinal rear IHEi'Bgll'lalSldeslhfilGOf. Lying flat against the rear flat face of plate 80 is a flat surfaced plate 90 having a large c1rcular central opening 91 through the thickness thereof. Plate 90 is movable only vertically with respect to plate 80 when in the position shown in the drawings. The w1dth of plate 90; is equal to the distance between gu de rails 87 and makes a precision fit therebetween while being capable of being slid up and down therebetween. As so positioned, the plate 90 has a pair of threaded openings in diagonally disposed corners thereof and in com- I munication with the respective slots 82 and 83 of plate 80 and are adapted to receive pitch and yaw adjusting I bolts 1 and 2. The lower corner of plate 90 opposite slot 84 has a pair of openings therethrough accommodating stud-bolts 95 for locking the post 57 to plate 90. One of the side rails of plate 90 has a vertically disposed narrow elongated opening 92 therein accommodating a latching bolt 93 passing therethrough and making threaded engagement with threaded opening 85 for locking and maintaining plate 90 in position. The upper rail of the plate 90 has vertically disposed threaded opening therethrough at the center thereof for receiving and making threaded engagement with a vertically positioned elongated stud bolt 96 terminating in a finger actuable head. A wide-spread ribbon spring element 98 has an opening through the center thereof through which said bolt 96 passes. A channel 100 is secured to the upper edge of the plate 80 by locking stud-bolts 97 which make threaded engagement with a pair of horizontally spaced and vertically disposed threaded openings in the upper rail of plate 89.

The upper ends of the plates 60 and 80 are located in channel 100 and are thereby maintained in very close proximity to each other at all times. The flat mid-part of spring '98 bears against the lower surface of bracket 100 and the legs thereof extend downwardly and outwardly and .bear against the uppermost face of plate 90 and continuously exert a downward force thereagainst thereby tending to move plate 90 downwardly against the limiting action of the bolt 96 coupled with plate 90. In this manner vertical setting is adjustable and maintained constant even if there is some play, however small between the bolt 96 and the threads in the opening coupled therewith. Brackets 100 acting together with the vertically adjusting bolt 96 serves to aid in maintaining the plates 69, 80 and 90 in the sandwich relationship shown.

The bracket 69 secured to rail 64 by bolts 68 has a flange which bears against plate 90 and the guide rails 87 to maintain all three plates in sandwich relation; and the bracket 70secured to the side rail 65 serves a like purpose. A ribbon spring 110 like spring 98 is located between a part of bracket 69 and plate 89 with the legs thereof hearing against plate 80 and tending to move the plates 80 and 90 towards bracket 7t} thereby taking up any play, if any, between the threads of the bolt 76 passing through bracket 69, fiat part of spring 110 and making threaded engagement with a horizontal threaded opening in plate 80.

The unitary sub-assembly B before described is readily coupled with sub-assembly A by merely inserting the rear end of assembly A through the common opening in assembly B to insert the post 57 through the openings in both plates 60 and '80 and to dispose the rear end thereof so that the threaded recesses therein are in registry with the openings in the lower corner of plate 90. Then stud bolts 95 are inserted through said opening in said lower corner and make threaded engagement with the said threaded openings to firmly lock and maintain said connecting post 57 to plate 90 whereby said sub-asesmbly A is rigidly and fixedly supported by sub-assembly B at only one locus namely post 57 and a lower corner of plate 90 through the deflectable plate 33. Then elongated bolts 1 and 2 make threaded engagement with threaded openings in diagonally opposite corners of plate 90, extend through slots 82 and 83 of plate 80 through opening 62 of plate 60 and through openings 39 and 40 of plate 33. The bolts 1 and 2 carry locknuts 105 and 106 disposed on both sides of plate 30 for assuring locking of the plate 33 in adjusted angular positions.

This complete assembly is a single unitary structure which is combined with the tube 10 by merely slipping the assembly forwardly along the neck 11 around the yoke or coil 21. The assembly is positioned longitudinally by means of the stud bolts 75 passing through the openings 74. When this adjustment is made, the support 60 is the only element thereof which is in fixed position and is so maintained until change longitudinally is later desired. To effectuate horizontal adjustment of the yoke 21, latching bolt 72 is loosened and the bolt 76 is rotated thereby to move the combined plates 80 and 90 in either direction horizontally with respect to plate 60 whereby they as well as the sub-assembly A are moved horizontally to a de sired position and then bolt 72 is tightened so that there after plates and together with assembly A are maintained in said horizontally adjusted position. To effectuate vertical adjustment of yoke 21 latch bolt 93 is loosened and the bolt 96 rotated to move vertically the plate 90 and .assembly A with respect to plates 80 and 60 thereby to locate the yoke 21 at the proper adjusted position vertically. When so positioned, bolt 93 is turned to maintain the plates and assembly A in such position. To eflectuate a change in another aspect of the centre of the yoke 21 effectuated by rotation thereof, the ring-retainer bolts 56 are loosened and then the handle 32 is actuated to turn the collar 30 and member 25 together with yoke 21 as a unitary structure either clockwise or counter-clockwise. When desired rotational adjustment has been so made, the bolts 56 are tightened thereby to maintain said adjustment. To effectuate a change in pitch of the yoke 21, the nuts on the pitch bolt 1 are rotated to move them in the desired direction. For example when they are moved towards plate 60, the upper part of the rigid plate 33 pitches rearwardly about the groove 47 on the axis 1 (FIG. 10). In this manner the plate 33, collar 30, member 25 and yoke 21 are pitched whereby to so pitch yoke 21. The other nut on bolt 1 is tightened against the outer face of plate 33 thereby to maintain the pitched corner of the plate 33 in said position, examples of which are shown in FIG. 14. With the yoke 21 so adjusted and maintained as before described, the yaw of the yoke 21 is adjusted and maintained by following the same procedure as that for pitch except with the bolt 2. In this manner the left part of the plate 33 is deflected about the groove 45 on the axis 12, examples of which are shown in FIG. 13. Also, if it is desired to swing the yoke about axes 13 and 14, thereby to swing the yoke 21 in still another position, the nuts on both adjusting bolts are moved for simultaneously or otherwise effectuating said purpose. In this operation the plate 33 is swung about the groove 49 on the axis 13 and 14. While the plate 33 is a very rigid plate, it may be deflected about the grooves 45, 47 and 49 in the amounts required to effectuate the desired deflections thereof and it is capable of returning to its original position. In the construction described, the plate 33 always tends to swing at each of its other three sides outwardly towards the fixed corner thereof secured to post 57.

Thus by making the adjustments heretofore set forth the yoke 21 is micropositioned with exactness and precision relative to the center of the beam of the tube 10.

Since certain changes may be made in carrying out the above devices without departing from the scope of the invention, it is intended that all matter contained in the above description shall be interpreted as illustrative and not in a limiting sense.

It is also understood that the following claims are intended to cover all the generic and specific features of the invention herein describe-d, and all statements of the scope of the invention, which as a matter of language might be said to fall therebetween.

I claim:

1. A device for adjustably positioning an electromagnetic means capable of influencing the beam of an electric discharge device comprising a first plate adapted to be secured to a support, a second plate movable in a path of travel with respect to said first plate, a third plate movable in a path of travel with respect to said second plate, said second mentioned path of travel being at right angles to said first mentioned path of travel, said second plate and said third plate being movable in unison in said first path of travel, each of said plates having relatively large central openings through the thicknesses thereof, said three plates being in sandwich relationship, with said second plate disposed between said first and third plates, a deflection plate adapted to be connected to said first mentioned means, means for rigidly connecting a corner of said deflection plate to a corner of said third plate, a

groove in said corner of said deflectionplate about which a side of said plate is deflectable, said second and first mentioned means being rotatable with respect to said deflection plate and said first, second and third plates for adjusting said first mentioned means rotationally when coupled with said deflection plate,'means for moving said second and third plates and said deflection plate in unison in said path of travel of said second plate with'respect to said first plate to adjust the location of the center of said first mentioned means, means for moving said third plate and said deflection plate in unison in said path of travel of said third plate with respect to said first and second plates to adjust the location of the center of said first means, means for deflecting said deflection plate about said corner thereof thereby to deflect said first mentioned means;

2. A device for adjustably positioning an electromagnetic means capable of influencing the beam of an electric discharge device comprising a first plate adapted to be secured to a support, a second plate movable only in a single path of travel With respect to said first plate, a' third plate movable only in a single path of travel with respect to said second plate, said second mentioned path of travel being at right angles to said first mentioned path of travel, said second plate and said third plate being movable in unison in said first path of travel, each of said plates having relatively large central openings through the thicknesses thereof, said three plates being in sandwich relationship, with said second plate disposed between said first and third plates, a deflectable plate, means for connecting said first mentioned means to said deflectable plate, means for rigidly connecting a corner of said deflect able plate to a corner of said third plate, a pair of crossgrooves in said corner of said deflectable plate, means for rotating said second mentioned means with respect to said deflectable plate and said first, second and third plates for adjusting said first mentioned means rotationally, means for moving said second and third plates and said deflectable plate in unison in said single path of travel of said second plate to adjust the location of the center of said first means, means for moving said third plate and said deflectable plate in unison in said single path of travel of said third plate with respect to said first and second plates to adjust the location of the center of said first means, means for deflecting said deflectable plate about said corner thereof thereby to deflect said first mentioned means. s

3. A device for adjustably positioning an electromagnetic means capable of influencing the beam of an electric discharge device comprising a first plate adapted to be secured to a support, a second plate movable only in a' single path of travel with respect to said first plate, a third plate movable only in a single path of travel with respect to said second plate, said second mentioned path of travel being at right angles to said first mentioned path of travel, said second plate and said third plate being movable in unison in said first path of travel, each of said plates having relatively large central openings through the thicknesses thereof, said three plates being in sandwich relationship, with said second plate disposed-belocationof the center'of said first means; means for defiecting said deflectable plate about said corner thereof thereby to deflect said first'mentioned means, and means for maintaining said deflectable plate in deflected position.

4. A device for adjustably positioning an electromagnetic means capable of influencing the beam of an electric discharge device comprising a first plate, a second plate movable in a path of travel with respect to said first plate, a third plate movable in a path of travel with respect to said second plate, said paths of travel being at right angles to each other, said second and third plates being movable in unison with respect to said first plate in said first mentioned path of travel, said second plate located between said first and third plates, means for maintaining said second plate in close proximity to said first and third plates, means for moving said second and third plates in unison in said first mentioned path of travel, resilient means exerting pressure on said second and third plates thereby tendingto move them against the action of said third mentioned means, thereby aiding in maintaining said second and third plates in precise adjusted position, means for moving said third plate in its path of travel with respect to said second plate, resilient means exerting pressure on said third plate thereby tending to move it against the action of said fourth mentioned means, thereby aiding in maintaining said third plate in precise adjusted position, a deflectable plate, a corner of said plate hav ing a pair of slots therein, said slots being at about right angles to each other, a pair of grooves in said corner, said grooves crossing each other, collar means, said electromagnet means being extendable through the central opening in said collar means and being securable to said collar means, said deflectable plate adapted to be coupled with said collar means, a post rigidly and fixedly connected to said deflectable plate at said corner, said post extending through openings in said first and second plates and being fixedly and rigidly secured to said third plate at a corner thereof, said collar means and said electromagnetic means when coupled with each other, being rotatable in unison with respect to all of said plates to rotationally adjust the center of said electromagnetic means, means secured to said third plate and coupled with said deflectable plate for deflecting said deflectable plate about said corner to adjust the pitch and yaw of said electromagnetic means when coupled therewith and means for locking said deflectable plate in its deflected condition.

A device for adjustably positioning an electromagnetic means capable of influencing the beam of an electric discharge device comprising a first plate, a second plate movable only in a single path of travel with respect to said first plate, a third plate movable only in a single path of travel withrespect to said second plate, said paths of travel being at right angles to each other, said second and third plates being movable in unison with respect to said first plate in only said first men- 7 tioned path of travel, said second plate located between tween said first and third plates, a deflectable plate, means for connecting said first mentioned means to said deflectable plate, means for rigidly connecting a corner of said deflectable plate to a corner of said third plate, a pair of cross-grooves and a diagonal groove in said corner of said deflectable plate, means for rotating said second mentioned means with respect to said deflectable plate and said first, second and third plates for adjusting said first mentioned means rotationally, means for moving said second and third plates and said deflectable plate in unison in said single path of travel of said second plate to adjust the location of the center of said first means, means for moving said third plate and said deflectable plate in unison in said single path 'of travel of said third plate with respect to said first and second plates to adjust the said first and third plates, means for maintaining said second plate in close proximity to said first and third plates, means for moving said second and third plates in unison in only said first mentioned path of travel and for maintaining them in adjusted position, resilient means exerting pressure on said second and third plates thereby tending to move them against the action of said third mentioned means to aid in maintaining them in precise adjusted position, means for moving said third plate in its single path of travel with respect to said second plate and for maintaining it in adjusted position, resilient means exerting pressure on said'third plate therer by tending to move it against the action of said fifth mentioned means to aid in maintaining it in precise adjusted position, a deflectable plate, a corner of said plate having a pair of slots therein, said slots being at about right angles to each other, a pair of grooves in said corner, said grooves crossing each other, collar means, said electromagnetic means being extendable through the central opening in said collar means and being securable to said collar means,

said deflectable plate coupled with said collar means, a post rigidly and fixedly connected to said deflectable plate at said corner, said post extending through openings in said first and second plates and secured to said third plate at a corner thereof, said collar means and electromagnetic means when coupled with each other being rotatable in unison with respect to all of said plates to rotationally adjust the center of said yoke, means secured to said third plate and coupled with said deflectable plate for deflecting said deflectable plate about said corner to adjust the pitch and yaw of said electromagnetic means when coupled with said deflectable plate and means for maintaining said deflectable plate in deflected condition.

6. A combination of an electromagnetic means capable of influencing the beam of an electric discharge device and a device for supporting and adjustably positioning said means, said means having a central opening therethrough for receiving a neck of said electric discharge device, said combination comprising:

a first sub-assembly comprising a first plate, a second plate movable in a path of travel with respect to said first plate, a third plate movable in a path of travel with respect to said second plate, said paths of travel being at right angles to each other, said second and third plates being movable in unison with respect to said first plate in said first mentioned path of travel, said second plate located between said first and third plates, means for maintaining said second plate in close proximity to said first and third plates, means for moving said second and third plates in unison in said first mentioned path of travel to adjust their location in said path, and for maintaining them in adjusted located, resilient means exerting pressure on said second and third plates thereby tending to move them against the action of said third mentioned means to aid in maintaining them in precise adjusted position, means for moving said third plate in its path of travel with respect to said second plate to adjust its location in said path, resilient means exerting pressure on said third plate thereby tending to move it against the action of said fifth mentioned means to aid in maintaining it in precise adjusted position;

a second sub-assembly comprises a rigid deflectable plate, a corner of said plate having a pair of slots therein, at about right angles to each other, a pair of cross grooves in said corner, collar means, said electromagnetic means extending through the central opening in said collar means and secured thereto, said collar means and said electromagnetic means being rotatable in unison with respect to said deflectable plate to rotationally adjust the center of said electromagnetic means, and means for maintaining them in rotationally adjusted position;

a post secured to said deflectable plate at said corner thereof and extending therefrom, said post secured to said third plate at a corner thereof whereby said second sub-assembly is movable in unison with said third plate whereby the locations of said electromagnetic means is adjustable in said paths at right angles to each other;

means coupled with said third plate and with said deflectable plate for deflecting said deflectable plate about said corner on axes at right angles to each other thereby to adjust the pitch and yaw of said electromagnetic means and means for maintaining said deflectable plate in its deflected condition.

7. A combination of an electromagnetic means capable of influencing the beam of an electric discharge device and a device for supporting and adjustably positioning said means, said means having a central opening therethrough for receiving a neck of said electric discharge device, said combination comprising:

a first sub-assembly comprising a first plate, a second plate movable only in a single path of travel with respect to said first plate, a third plate movable only in a single path of travel with respect to said second plate, said paths of travel being at right angles to each other, said second and third plates being movable in unison with respect to said first plate in only said first mentioned path of travel, said second plate located between said first and third plates, means for maintaining said second plate in close proximity to said first and third plates, means for moving said second and third plates in unison in said first mentioned path of travel to adjust their location in said path, and for maintaining them in adjusted location, resilient means exerting pressure on said second and third plates thereby tending to move them against the action of said third mentioned means to aid in maintaining them in precise adjusted position means for moving said third plate in its path of travel with respect to said second plate to adjust the location in said path, resilient means exerting pressure on said third plate thereby tending to move it against the action of said fifth mentioned means to aid in maintaining it in precise adjusted position;

a second sub-assembly comprises a rigid deflectable plate, a corner of said plate having a pair of slots therein, at about right angles to each other, a pair of cross grooves in said corner, said cross grooves being at right angles to each other, a diagonal groove in said corner, said diagonal groove and said cross grooves having a common point of intersection, collar means, said electromagnetic means extending through the central opening in said collar means and secured thereto, said collar means and said electromagnetic means being rotatable in unison with respect to said deflectable plate to rotationally adjust the center of said electromagnetic means and means for maintaining them in rotationally adjusted position;

a post secured to said deflectable plate at said corner thereof and extending therefrom, said post secured to said third plate at a corner thereof whereby said second sub-assembly is movable in unison with said third plate whereby the locations of said electromagnetic means is adjustable in said paths at right angles to each other;

means coupled with said third plate and with said deflectable plate for deflecting said deflectable plate about said corner on axes at right angles to each other thereby to adjust the pitch and yaw of said electromagnetic means and means for maintaining said deflectable plate in its deflected condition.

8. A combination of an electromagnetic means capable of influencing the beam of an electric discharge device and a device for supporting and adjustably positioning said means, said means having a central opening therethrough for receiving a neck of said electric discharge device, said combination comprising:

a first sub-assembly comprising a first plate, a second plate movable only in a single path of travel with respect to said first plate, a third plate movable only in a single path of travel with respect to said second plate, said paths of travel being at right angles to each other, said second and third plates being movable in unison with respect to said first plate in said first mentioned path of travel, said second plate located between said first and third plates, means for maintaining said second plate in close proximity to said first and third plates, a bolt for moving said second and third plates in unison in said first mentioned path of travel, to adjust their location in that path, resilient means exerting pressure on said second and third plates thereby tending to move them against the action of said bolt to aid in maintaining them precisely in their adjusted location; a bolt for moving said third plate in its path of travel With respect to said second plate to adjust its location in said path, resilient means exerting pressure on said third plate thereby tending to move it against the action of said second mentioned bolt to aid in maintaining it precisely in adjusted location; second sub-assembly comprises a rigid deflectable plate, a corner of said plate having a pair of slots therein at about right angles to each other, a pair of right angled-crossing grooves and a diagonal groove in said corner, said diagonal groove intersecting said right angled-crossing grooves at the intersection thereof, collar means, said electromagnetic means extending through the central opening in said collar means and secured thereto, said electromagnetic and collar means rotatable in unison With respect to said' deflectable plate to rotationally adjust the center of said electromagnetic means, and means for maintaining them in said adjusted position with respect'to said deflectable plate;

rigid post secured to said deflect-able plate at said corner thereof and extending therefrom, said post secured to said third plate at acorner thereof, said second sub-assembly being movable in unison with said third plate whereby said electromagnetic means is adjustable in said paths at right angles to each other;

and means coupled with said third plate and said deflectable plate for deflecting said deflectable plate about said corner thereof and on axes at about right angles to each other thereby to adjust the pitch and yaw of said electromagnetic means, said last mentioned means extending through diagonally disposed openings in said deflectable plate, and means for maintaining said deflectable plate in adjusted deflected condition.

References Cited UNITED STATES PATENTS 20 JAMES W. LAWRENCE, Primary Examiner.

V. LAFRANCHI, Assistant Examiner. 

1. A DEVICE FOR ADJUSTABLY POSITIONING AN ELECTROMAGNETIC MEANS CAPABLE OF INFLUENCING THE BEAM OF AN ELECTRIC DISCHARGE DEVICE COMPRISING A FIRST PLATE ADAPTED TO BE SECURED TO A SUPPORT, A SECOND PLATE MOVABLE IN A PATH OF TRAVEL WITH RESPECT TO SAID FIRST PLATE, A THIRD PLATE MOVABLE IN A PATH OF TRAVEL WITH RESPECT TO SAID SECOND PLATE, SAID SECOND MENTIONED PATH OF TRAVEL BEING AR RIGHT ANGLES, TO SAID FIRST MENTIONED PATH OF TRAVEL, SAID SECOND PLATE AND SAID THIRD PLATE BEING MOVABLE IN UNISON IN SAID FIRST PATH OF TRAVEL, EACH OF SAID PLATES HAVING RELATIVELY LARGE CENTRAL OPENINGS THROUGH THE THICKNESS THEREOF, SAID THREE PLATES BEING IN SANDWICH RELATIONSHIP, WITH SAID SECOND PLATE DISPOSED BETWEEN SAID FIRST AND THIRD PLATES, A DEFLECTION PLATE ADAPTED TO BE CONNECTED TO SAID FIRST MENTIONED MEANS, MEANS FOR RIGIDLY CONNECTING A CORNER OF SAID DEFLECTION PLATE TO A CORNER OF SAID THIRD PLATE, A GROOVE IN SAID CORNER OF SAID DEFLECTION PLATE ABOUT WHICH A SIDE OF SAID PLATE IS DEFLECTABLE, SAID SECOND AND FIRST MENTIONED MEANS BEING ROTATABLE WITH RESPECT TO SAID DEFLECTION PLATE AND SAID FIRST, SECOND AND THIRD PLATES FOR ADJUSTING SAID FIRST MENTIONED MEANS ROTATIONALLY WHEN COUPLED WITH SAID DEFLECTION PLATE, MEANS FOR MOVING SAID SECOND AND THIRD PLATES AND SAID SECOND PLATE WITH RESPECT IN SAID PATH OF TRAVEL OF SAID SECOND PLATE WITH RESPECT TO SAID FIRST PLATE TO ADJUST THE LOCATION OF THE CENTER OF SAID FIRST MENTIONED MEANS, MEANS FOR MOVING SAID THIRD PLATE AND SAID DEFLECTION PLATE IN UNISON IN SAID PATH OF TRAVEL OF SAID THIRD PLATE WITH RESPECT TO SAID FIRST AND SECOND PLATES TO ADJUST THE LOCATION OF THE CENTER OF SAID FIRST MEANS, MEANS FOR DEFLECTING SAID DEFLECTION PLATE ABOUT SAID CORNER THEREOF THEREBY TO DEFLECT SAID FIRST MENTIONED MEANS. 